Shortstripper: interesting point. The idea of spinning to descend through cloud has come up before, but none of us knew anyone who'd tried it. As you say, preferable to over-stressing the airframe whilst out of control in a descent. It would be psychologically disconcerting, to say the least, to start the spin above unbroken cloud, trusting (a) to the accuracy of the reported cloudbase and (b) to one's ability to remain focused whilst spinning through grey fog and so recover promptly on clearing the base. I think that, if I was stupid enough to get myself stuck above cloud (having no IMC), I would probably opt to try a straight ahead descent on instruments (telling D&D what I was up to and taking their advice) unless the instruments were broken.